InChI=1/C14H18N4O2/c1-18(2)8-7-15-14(20)17-12-9-16-11-6-4-3-5-10(11)13(12)19/h3-6,9H,7-8H2,1-2H3,(H,16,19)(H2,15,17,20)/p+1/fC14H19N4O2/h15-18H/q+1 2113BF26A14A897D